In the secret transmission on the Spiritual Mountain, the pure tradition of Shaolin, actions accord, words complement each other, great perfect awareness is one's own sanctuary. Body and mind dwelling at peace, with knowledge of equality of the real nature of all things, keep pure as ice and snow. Summon forth great energy in your efforts, great courage and determination; wielding the sword of wisdom, go directly ahead, going beyond all, beyond seeing that mountains are mountains, rivers are rivers, the whole body comes thus, the whole body goes thus - there are no complications around at all.
At this time, can you call it the fundamental business of a patch-robed monk? You must let go your hands over a mile-high precipice and appear with your whole body throughout the universe.
In the direct teachings of the ancestral masters, there are no special techniques, just lay down all entanglements, put to rest all concerns, and watch quietly. Whenever you wander into distinctions among things, just bring your attention back. Don't think in terms like "the way to enlightenment" or "the path of purification." Avoid consciously anticipating understanding and beware of letting feelings of doubt or despair distract you. Go directly in like cutting through an iron bar with a single stroke, where there is no flavor, no path of reason, without getting involved in other thoughts.
After some time you will naturally be as if waking from a dream, like a lotus blossom opening. At this moment, the koan you have been observing is just a piece of tile to knock at the door - throw it over on the other side and then look instead at the sayings of the enlightened ancestors and buddhas expressing activity in the world of differentiation. All of these are just to stop children crying; the one road going beyond does not let a single thread through, but cuts off the essential crossing between ordinary and holy, while students toil over forms like monkeys grasping at the moon.
We might say that if you forget your own body and go frantically searching outside, when can you ever find it? Sitting peacefully on a cushion, day and night seeking to become buddhas, rejecting life and death in hopes of realization, is all like monkeys grasping at the moon.
You must know there are methods of offering help and guidance; one is the technique of sitting meditation, the other is the technique of direct pointing. Sitting meditation is the great calm; direct pointing is the great wisdom. Before the empty eon, on the other side of the ancient buddhas, self-enlightenment without a teacher, without any such techniques - this is what Bodhidharma taught, the hidden transmission of personal experience. After the empty eon, there is delusion and enlightenment, there are questions and answers, there are teachers and students; all these are guiding techniques.
Thus an ancient said:
Infinite lands and worlds
With no distinctions between self and others
Ten ages past and present
Are never apart from this moment of thought.